Version 4
SHEET 1 880 680
WIRE 112 -128 80 -128
WIRE 224 -128 192 -128
WIRE 256 -128 224 -128
WIRE 80 -96 80 -128
WIRE 224 -96 224 -128
WIRE 80 16 80 -16
WIRE 224 16 224 -16
WIRE 224 16 80 16
WIRE 256 16 224 16
WIRE 80 32 80 16
WIRE 112 112 80 112
WIRE 224 112 192 112
WIRE 256 112 224 112
WIRE 368 112 336 112
WIRE 80 144 80 112
WIRE 224 144 224 112
WIRE 368 144 368 112
WIRE 80 256 80 224
WIRE 224 256 224 224
WIRE 224 256 80 256
WIRE 368 256 368 224
WIRE 368 256 224 256
WIRE 80 272 80 256
FLAG 80 272 0
FLAG 224 112 UR3
FLAG 80 32 0
FLAG 256 -128 URL
SYMBOL voltage 80 128 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 112 Left 2
SYMATTR SpiceLine Rser=0
SYMATTR InstName U
SYMATTR Value 12
SYMBOL res 208 96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 2k
SYMBOL res 352 96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL res 240 240 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R3
SYMATTR Value 2k
SYMBOL res 240 0 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName RL
SYMATTR Value 2k
SYMBOL voltage 80 -112 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 112 Left 2
SYMATTR SpiceLine Rser=0
SYMATTR InstName UTH
SYMATTR Value 6
SYMBOL res 208 -144 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName RTH
SYMATTR Value 2k
SYMBOL res 352 128 R0
SYMATTR InstName R4
SYMATTR Value 0
TEXT 64 296 Left 2 !.tran .1
